Verb. The act of quickly switching windows away from whatever you were doing (generally fucking around) to something more appropriate (say, Excel) when your boss or other authority figure gets within eyeshot of your screen, thereby maintaining the appearance of diligence.
Also useful as an exclamation.
"The problem with youtube is that when you have to scheizentoggle, the sound keeps playing."
"My boss totally
caught me scheizentoggling out of facebook about a dozen times today."